Label the following furnace.
19-1 Stack
19-2 High temperature alarm
19-3 Oxygen analyzer
19-4 Damper
19-5 Charge in
19-6 Pre-heated air system
19-7 Arch
19-8 Air from compressor
19-9 Air to burner
19-10 Terminal penetrations
19-11 Convection section
19-12 Convection tubes
19-13 Header box and gasket
19-14 Soot blower
19-15 Shock bank
19-16 Refractory
19-17 Radiant section
19-18 Radiant tubes
19-19 Bridgewall
19-20 Fire box
19-21 Insulation
19-22 Shell
19-23 Stainless steel pins
19-24 Castable floor
19-25 Charge out
19-26 Burners
19-27 Air in
19-28 Fuel in
19-29 Air registers
19-30 Steam in
19-31 Peep block
19-32 Cabin furnace
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?The number of oxygen atoms required to completely combust the fuel gas ____.
A. ?is two B. ?is four C. ?varies, depending on its molecular makeup D. ?varies, depending on its temperature
The herbicide Roundup is:
a. Expensive b. Detrimental to the environment c. Effective at killing a wide variety of unwanted vegetation d. All answers are correct.
What are the two types of fixed metering devices?
What will be an ideal response?
Consider the east wall of a house that has a thickness of L. The outer surface of the wall exchanges heat by both convection and radiation. The interior of the house is maintained at T?1, while the ambient air temperature outside remains at T?2. The sky, the ground, and the surfaces of the surrounding structures at this location can be modeled as a surface at an effective temperature of Tsky for radiation exchange on the outer surface. The radiation exchange between the inner surface of the wall and the surfaces of the walls, floor, and ceiling it faces is negligible. The convection heat transfer coefficients on the inner and outer surfaces of the wall are h1 and h2, respectively. The thermal conductivity of the wall material is k and the emissivity of the outer surface is ?2.
Assuming the heat transfer through the wall to be steady and one-dimensional, express the mathematical formulation (the differential equation and the boundary and initial conditions) of this heat conduction problem. Do not solve.
